WO2012014742A1 - Opening/closing apparatus - Google Patents

Abstract

The present invention is related to an opening/closing apparatus, wherein, when opening a first housing and a second housing with respect to each other into a completely flat state, the movement of the second housing in between a closed state and an opened state of the housings is made to be stable and smooth. The opening/closing apparatus comprises an anchoring frame that is to be anchored to the first housing (2); a moving plate that is made to be capable of moving and rotating with respect to the anchoring frame; a slide plate that is anchored to the second housing by a sliding mechanism, and made to be slidable with respect to the moving plate; and first and second link arms having the same length, and shafts at one end of which are received by the anchoring frame, and the shafts at the other end of which are received by the moving plate.

Description

Switchgear

The present invention relates to an opening and closing device, and more particularly to an opening and closing device capable of opening a first housing and a second housing in a so-called full flat.

Generally, a portable terminal device represented by a portable terminal device has a first case (fixed plate) provided with a numeric keypad and the like, and the liquid crystal display device etc. provided and can be opened and closed with respect to the first case And the second case (moving plate). Further, as a structure for opening and closing the second housing with respect to the first housing, the first housing and the second housing are connected by a hinge mechanism, and the second housing is rotated with respect to the first housing. In general, a type that is opened and closed by folding (folding type) and a type that is opened and closed by sliding the second casing with respect to the first casing (sliding type) are common.

By the way, in recent years, the function of portable terminal devices is increasing, and devices capable of receiving terrestrial digital broadcasting are also provided, and the enlargement of liquid crystal display devices is also advancing. In addition, as the number of functions increases, the number of keys of a keyboard that performs input processing to a portable terminal device tends to increase, and thus the size of the keyboard also tends to increase. On the other hand, it is constantly desired to improve the portability of portable terminal devices, and there is a limit to the increase in size of liquid crystal display devices and keyboards.

In the above-described foldable type mobile terminal device, the liquid crystal display device is hidden in the folded state, and the liquid crystal display device can not be used in the folded state. Further, in the slide type portable terminal device, the above-mentioned problem of the fold type does not occur, but in the open state, the first housing and the second housing inevitably overlap, which prevents effective use of space. There is a problem.

Therefore, an open / close device has been proposed in which the first housing and the second housing have the same planar shape (flat) when the first housing and the second housing are open (see Patent Documents 1 to 3). . According to this configuration, the liquid crystal display device can be used even in the state in which the first housing and the second housing are closed, and in a state in which the first housing and the second housing are open There are no parts, and effective use of space can be achieved.

JP, 2009-218674, A JP, 2009-059102, A JP, 2009-071588, A

However, in the opening / closing device disclosed in Patent Document 1, since the second housing is moved with respect to the first housing by one arm, the second housing is arbitrarily rotated during movement. There is a problem that the movement operation becomes unstable.

Further, in the opening and closing device disclosed in Patent Documents 2 and 3, the sliding operation for sliding the second case with respect to the first case when performing the opening and closing operation, and the second case for the first case There is a problem that the opening and closing operation is troublesome because it requires two operations of raising and lowering operations to move up and down.

SUMMARY OF THE INVENTION It is a general object of the present invention to provide an improved and useful switchgear which solves the problems of the prior art described above.

A more specific object of the present invention is to provide an opening and closing device capable of stably and smoothly performing a movement operation between the closed position and the open position of the second housing in one operation.

In order to achieve this object, the switchgear according to the present invention is:
A fixed frame having a bearing portion and fixed to the first housing;
A movable plate rotatably movable relative to the fixed frame;
A slide plate which is slidable relative to the moving plate and fixed to the second housing;
An arm having one end pivotally supported by the bearing and the other end pivotally supported by the moving plate, and having a plurality of arms of the same length disposed between the bearing and the moving plate;
And a slide mechanism for sliding the slide plate relative to the moving plate,
The slide plate slides relative to the movable plate by the slide mechanism, and the movable plate rotates relative to the fixed frame as the arm rotates, whereby the second housing and the first housing The second housing is configured to move from an overlapping closed position to an open position where the second housing is flat with the first housing.

In the above invention, the plurality of arms may be arranged in parallel with each other between the bearing portion and the moving plate.

In the above invention, a force is applied to at least one of the arms in the return direction until the arms are rotated from the closed position or the open position to the predetermined reverse position, and in the forward direction when the reverse position is exceeded. A first semi-automatic mechanism for biasing force may be provided.

In the above invention, the slide mechanism applies a force in the return direction until the slide plate is slid from the slide start position to the predetermined reverse position, and biases the force in the forward direction when the reverse position is exceeded. The second semi-automatic mechanism may be provided.

According to the present invention, it is possible to stably open and close the second housing with respect to the first housing while maintaining the horizontal state of the second housing, and at the same time the second housing is in the closed position and the open position. Can be moved between

It is a perspective view of the opening and closing device which is one embodiment of the present invention. It is an exploded perspective view of the opening and closing device which is one embodiment of the present invention. It is an exploded perspective view for explaining the slide mechanism of the opening and closing device which is one embodiment of the present invention. It is a figure for demonstrating the operation | movement of the switching device which is one Embodiment of this invention, and is a perspective view which shows the open state of a slide plate. It is a figure for demonstrating the operation | movement of the switching device which is one Embodiment of this invention, and is a perspective view which shows the state in which a slide plate exists in a 1st intermediate position. It is a figure for demonstrating the operation | movement of the switching device which is one Embodiment of this invention, and is a perspective view which shows the state which a slide plate exists in a 2nd middle position. It is a figure for demonstrating the operation | movement of the switching device which is one Embodiment of this invention, and is a perspective view which shows the closed state of a slide plate. It is a figure for demonstrating the operation | movement of the switching device which is one Embodiment of this invention, and is a side view which shows the open state of a slide plate. It is a figure for demonstrating operation | movement of the switch | opening-closing apparatus which is one Embodiment of this invention, and is a side view which shows the state in which a slide plate exists in a 1st intermediate position. It is a figure for demonstrating operation | movement of the switch | opening-closing apparatus which is one Embodiment of this invention, and is a side view which shows the state which a slide plate exists in a 2nd middle position. It is a figure for demonstrating the operation | movement of the switching device which is one Embodiment of this invention, and is a side view which shows the closed state of a slide plate. It is a figure for demonstrating the operation | movement of the switching device which is one Embodiment of this invention, and is a top view which shows the open state of a slide plate. It is a figure for demonstrating operation | movement of the switch | opening-closing apparatus which is one Embodiment of this invention, and is a top view which shows the state in which a slide plate exists in a 1st intermediate position. It is a figure for demonstrating operation | movement of the switch | opening-closing apparatus which is one Embodiment of this invention, and is a top view which shows the state in which a slide plate exists in a 2nd middle position. It is a figure for demonstrating the operation | movement of the switching device which is one Embodiment of this invention, and is a top view which shows the closed state of a slide plate. It is a figure for demonstrating the operation | movement of the switching device which is one Embodiment of this invention, and is a perspective view which shows the open state of a slide plate. It is a figure for demonstrating the operation | movement of the switching device which is one Embodiment of this invention, and is a perspective view which shows the state in which a slide plate exists in a 1st intermediate position. It is a figure for demonstrating the operation | movement of the switching device which is one Embodiment of this invention, and is a perspective view which shows the state which a slide plate exists in a 2nd middle position. It is a figure for demonstrating the operation | movement of the switching device which is one Embodiment of this invention, and is a perspective view which shows the closed state of a slide plate. FIG. 8 is an exploded perspective view for explaining a first modification of the switchgear sliding mechanism according to the embodiment of the present invention. FIG. 9 is an exploded perspective view for explaining a second modification of the switchgear sliding mechanism according to the embodiment of the present invention. FIG. 10 is an exploded perspective view for explaining a third modification of the switchgear sliding mechanism according to the embodiment of the present invention.

REFERENCE SIGNS LIST 1 electronic device 2 first housing 3 second housing 10 opening / closing device 12 fixed frame 14 moving plate 14 a main body 14 b, 14 c connection 14 d, 14 e stopper groove 14 f slide groove 16 slide plate 16 a main body 16 b slide 16 d, 16 e Stopper 18 First link arm 20 Second link arm 22, 42, 52, 62 Slide mechanism 23, 63 Spring unit 24, 44 Cam plate 24a, 24b, 44a, 44b Cam groove 24c, 44c Cam surface 26 Link shaft 27 Corey Spring 28 Roller 29 Coupling Member 30 Hinge Unit 53, 64 Wire Spring 54 Roller 55 Slide Guide

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1 to 3 are views for explaining a switching device 10 according to an embodiment of the present invention, FIG. 1 is a perspective view of the switching device 10, FIG. 2 is an exploded perspective view of the switching device 10, FIG. FIG. 3 is an exploded perspective view for explaining a slide mechanism 22 and the like of the opening and closing device 10.

The switching device 10 according to the present embodiment is applied to, for example, an electronic device 1 as shown in FIG. 7A. The electronic device 1 is a portable terminal device, and includes a first housing 2, a second housing 3, and the opening / closing device 10 according to the present embodiment. A keyboard, a liquid crystal display device, etc. are provided on the upper surface of the first housing 2. In addition, a liquid crystal display device or the like is provided on the upper surface of the second housing 3.

When carrying a portable terminal device, it is necessary to reduce its shape to improve portability. Therefore, the electronic device 1 according to the present embodiment is configured to slide the second housing 3 with respect to the first housing 2 between the closed position and the open position by providing the opening / closing device 10.

FIG. 7A shows a state in which the second housing 3 is in the closed position (hereinafter referred to as the closed state), and FIG. 7D shows a state in which the second housing 3 is in the open position (hereinafter referred to as the open state). There is. In the closed state, the second housing 3 is in a state of overlapping the top of the first housing 2. Further, in the present embodiment, since the shapes of the first housing 2 and the second housing 3 in plan view are the same shape, the area in plan view of the electronic device 1 in the closed state is the area in the open state. It is half. Therefore, in the closed state, the electronic device 1 has a small size, and portability is secured.

On the other hand, in the open state, the second housing 3 is moved from the closed position to the open position by the opening / closing device 10 as described in detail later, and the upper surface 2a of the first housing 2 and the upper surface 3a of the second housing 3 Are held in the same plane. In this open state, as shown in FIG. 7D, the first housing 2 and the second housing 3 do not overlap, but are arranged in parallel on the same plane.

In this open state, the casings 2 and 3 do not overlap, and the entire upper surfaces 2a and 3a of the casings 2 and 3 are exposed upward. Therefore, the entire surface of the upper surface 2a of the first housing 2 and the entire surface of the upper surface 3a of the second housing 3 can be used as installation positions of components of the electronic device 1.

As described above, in the electronic device 1 provided with the opening / closing device 10 according to the present embodiment, the entire upper surface of the first housing 2 and the entire upper surface of the second housing 3 can be used as installation positions of components. The use efficiency of a few space can be improved.

Next, the opening / closing device 10 that enables the above operation of the first housing 2 and the second housing 3 will be described.

As shown in FIGS. 1 to 3, the opening / closing device 10 is constituted by a fixed frame 12, a moving plate 14, a slide plate 16, a first link arm 18, a second link arm 20, a slide mechanism 22 and the like. There is. First, the fixed frame 12 will be described.

The fixed frame 12 is fixed to the first housing 2 of the electronic device 1. The fixed frame 12 is formed by press-forming a metal plate material, and a base portion 12a fixed to the first housing 2 and shaft supporting portions 12b, 12c, 12d bent at both ends of the base portion 12a. And are integrally formed.

The respective bearing portions 12b, 12c, 12d are bent substantially at right angles with respect to the base portion 12a. A first link arm 18, which will be described later, is connected to a shaft pin 17 supported between the bearing portion 12b and the bearing portion 12c. In addition, a second link arm 20 described later is connected to a link shaft 26 axially supported by the bearing portion 12c and the bearing portion 12d. For this reason, the axial hole in which the axial pin 17 and the link shaft 26 are penetrated is formed in each axial support part 12b, 12c, 12d.

In the present embodiment, two fixed frames 12 are provided, and they are arranged to be separated in the directions of arrows Y1 and Y2 in the drawing. In the following description, when it is necessary to individually explain the fixed frames 12 separated in the Y1 and Y2 directions, the fixed frame 12 on the Y1 direction side is referred to as a fixed frame 12A, and the fixed frame 12 on the Y2 direction side is a fixed frame. It shall be shown and described as 12B.

Further, in each component of the opening / closing device 10 described below, the component disposed on the Y1 direction side is also appended with “A” as necessary to its reference numeral, and the component disposed on the Y2 direction side The symbol “A” will be added to the code as necessary. The fixed frames 12A and 12B do not necessarily have to be divided into two, and the fixed frames 12A and 12B can be integrally configured by connecting the base portions 12a to each other.

Next, the moving plate 14 will be described.

The movable plate 14 is formed by press-forming a metal plate material, and as shown in FIG. 3, has a base portion 14a, connection portions 14b and 14c, a slide groove 14f, and the like. The main body portion 14a is a plate-like member extending in the directions of arrows Y1 and Y2 in the drawing. The connection portions 14b and 14c and the slide groove 14f are integrally formed at both ends (ends in the Y1 and Y2 directions) of the main body portion 14a.

The connection portions 14b and 14c are bent so as to extend perpendicularly upward (in the direction of the arrow Z1 in the drawing) with respect to the main body portion 14a. Connecting members 29 (29A, 29B) described later are disposed at the connecting portions 14b, 14c. Further, stopper grooves 14d and 14e are formed at positions near four corners of the main body portion 14a. The stopper grooves 14d and 14e are semicircular grooves, and are formed corresponding to the arrangement positions of the stoppers 16d and 16e described later.

The slide grooves 14f are U-shaped grooves formed at both end portions of the main body portion 14a. The slide groove 14f is formed by bending the end of the main body 14a downward once and then bending it inward. A slide portion 16b of a slide plate 16 described later is slidably attached to the slide groove 14f.

On the other hand, connecting members 29 (29A, 29B) are disposed at the connecting portions 14b, 14c described above. The connection member 29 is a member formed by bending a metal plate material in a U-shape. The connecting member 29 is fixed to the connecting portions 14 b and 14 c by using a fixing member 38.

Further, axial holes 29 b and 29 c are formed on the side surfaces of the connecting member 29. The upper end portion of the first link arm 18 is rotatably connected to the shaft hole 29 b. Specifically, the shaft hole 18a formed at the upper end of the first link arm 18 and the shaft hole 29b formed in the connecting member 29 are aligned, and the shaft pin 15 is inserted into each shaft hole 18a, 29b. By fixing to the connecting member 29, the first link arm 18 is rotatably connected to the moving plate 14 via the connecting member 29.

The upper end portion of the second link arm 20 is rotatably connected to the shaft hole 29 c. Specifically, the axial holes 20a formed in the second link arm 20 and the axial holes 29c formed in the connecting member 29 are aligned, and the axial pins 19 are arranged in each axial hole 20a. The second link arm 20 is rotatably connected to the moving plate 14 via the connecting member 29 by inserting the connector 29c and fixing to the connecting member 29.

Next, the slide plate 16 will be described.
The slide plate 16 is formed by pressing a metal plate material, and is fixed to the second housing 3 of the electronic device 1. Further, the slide plate 16 is movably attached to the movable plate 14, and more specifically, is configured to be slidable in the directions of arrows X1 and X2 with respect to the movable plate 14 by the slide mechanism 22.

The slide plate 16 is configured to have a main body portion 16a, a slide portion 16b, stoppers 16d and 16e, and the like. The main body portion 16 a is a metal plate-like member having a rectangular shape. The side portions of the main body portion 16a in the Y1 direction and the Y2 direction in the drawing are formed with slide portions 16b by being bent in a step shape.

Further, stoppers 16d and 16e are disposed at four corner positions of the main body portion 16a. The stoppers 16d and 16e are cylindrical projections erected on the main body portion 16a. The stopper 16d is disposed on the X2 direction side of the main body portion 16a, and the stopper 16e is disposed on the X1 direction side of the main body portion 16a.

As described above, the slide plate 16 moves in the X1 and X2 directions with respect to the moving plate 14. The stopper grooves 14d and 14e provided on the moving plate 14 and the stoppers 16d and 16e provided on the slide plate 16 function as a movement range restricting mechanism for restricting the movement range of the slide plate 16 with respect to the movement plate 14.

That is, when the slide plate 16 moves in the X1 direction with respect to the moving plate 14, the stopper 16d abuts on the stopper groove 14d, whereby the slide of the slide plate 16 in the X1 direction is restricted. Conversely, when the slide plate 16 moves in the X2 direction with respect to the moving plate 14, the stopper 16e abuts on the stopper groove 14e, whereby the slide of the slide plate 16 in the X2 direction is restricted. Thereby, the excessive slide of the slide plate 16 can be suppressed and the stability of the opening / closing device 10 can be enhanced.

As described above, 16d and 16e are in contact with the stopper grooves 14d and 14e. Therefore, in order to suppress the collision sound at the time of contact, it is desirable to dispose a buffer member such as rubber on the outer periphery of 16 d and 16 e.

Next, the slide mechanism 22 will be described.

The slide mechanism 22 has a function of sliding the slide plate 16 in the X1 and X2 directions with respect to the moving plate 14. The slide mechanism 22 is configured to have a slide groove 14 f formed in the moving plate 14, a slide portion 16 b formed in the slide plate 16, a spring unit 23, a cam plate 24 and the like.

As described above, the slide portions 16b formed on both sides (sides in the Y1 and Y2 directions) of the slide plate 16 slidably engage with the slide grooves 14f formed in the U shape in the moving plate 14 Thus, the slide plate 16 slides in the X1 and X2 directions with respect to the moving plate 14.

The spring unit 23 is fixed to the back surface (the surface on the arrow Z2 side) of the moving plate 14. The spring unit 23 includes a roller 28 and a corry spring 27 and the like. The spring unit 23 is configured to bias the roller 28 in the direction of the arrow Y1 in FIG.

The cam plate 24 is fixed to the upper surface (the surface on the arrow Z1 side) of the slide plate 16. The cam plate 24 is provided to extend in the X1 and X2 directions along the side of the slide plate 16 in the Y1 direction. In the cam plate 24, cam grooves 24a and 24b and a cam surface 24c are formed. The cam grooves 24a and 24b are disposed on the cam plate 24 so as to be separated in the X1 and X2 directions, and a cam surface 24c is formed between the pair of cam grooves 24a and 24b. In the present embodiment, the cam surface 24 c is in the form of a linear cam having no unevenness in the surface direction.

The spring unit 23 is configured such that the roller 28 engages with the cam grooves 24 a and 24 b or the cam surface 24 c of the cam plate 24 in a state where the slide plate 16 is mounted on the moving plate 14. That is, the roller 28 provided in the spring unit 23 is configured to be in pressure contact with the cam plate 24 by the elastic force of the corie spring 27.

The position where the cam groove 24 a and the roller 28 of the spring unit 23 engage is configured to correspond to the position where the stopper groove 14 d and the stopper 16 d abut when the slide plate 16 slides in the X1 direction with respect to the moving plate 14. It is done. The position where the cam groove 24b and the roller 28 of the spring unit 23 engage corresponds to the position where the stopper groove 14e and the stopper 16e abut when the slide plate 16 slides in the X2 direction with respect to the moving plate 14. It is configured as follows.

Therefore, when the slide plate 16 moves to the slide limit position in the X1 direction with respect to the moving plate 14, and when the slide plate 16 moves to the slide limit position in the X2 direction with respect to the moving plate 14, the roller of the spring unit 23 By engaging the cam groove 24a or the cam groove 24b, a click feeling can be obtained.

Furthermore, when the roller 28 of the spring unit 23 moves between the cam groove 24a and the cam groove 24b of the cam plate 24, as described above, the elastic force of the coroi spring 27 of the spring unit 23 causes the roller 28 to move to the cam surface 24c. It is pressed. As a result, the slide plate 16 is pressed against the moving plate 14 in the Y1 direction. Thus, when the slide plate 16 is pressed in the Y1 direction with respect to the moving plate 14, it is possible to prevent generation of rattling when the slide plate 16 slides with respect to the moving plate 14. Further, when the roller 28 is pressed against the cam surface 24 c, a load is applied when sliding the slide plate 16 with respect to the movable plate 14, whereby the slide plate 16 is moved to an arbitrary position (cam surface It is possible to lock at any position on 24c) (so-called free stop is possible).

Next, the first link arm 18 and the second link arm 20 will be described.

An upper end portion of the first link arm 18 is rotatably connected to the connecting member 29 by a shaft pin 15. Further, since the connecting member 29 is fixed to the moving plate 14, the upper end portion of the first link arm 18 is configured to be rotatable with respect to the moving plate 14. The lower end portion of the first link arm 18 is connected to the bearing portions 12 b and 12 c of the fixed frame 12 by the shaft pin 17. Therefore, the lower end portion of the first link arm 18 is configured to be rotatable with respect to the bearing portions 12 b and 12 c of the fixed frame 12.

On the other hand, the upper end of the second link arm 20 is rotatably connected to the connecting member 29 by the shaft pin 19, so that the upper end of the second link arm 20 can be rotated relative to the moving plate 14. It is a structure. The lower end portion of the second link arm 20 is connected to the bearing portions 12 b and 12 c of the fixed frame 12 by a link shaft 26. Thus, the lower end portion of the second link arm 20 is configured to be rotatable with respect to the bearing portions 12 b and 12 c of the fixed frame 12.

As described above, in the present embodiment, a plurality of (two in the present embodiment) first and second link arms 18 and 20 are disposed between the bearing portions 12 b and 12 c of the fixed frame 12 and the slide plate 16. It is supposed to be configured. The first and second link arms 18 and 20 are arranged parallel to each other between the bearing portions 12 b and 12 c of the fixed frame 12 and the slide plate 16.

Furthermore, the length of the first link arm 18 and the length of the second link arm 20 are the same. Specifically, the separation distance between the position supported by the shaft pin 15 in the first link arm 18 and the position supported by the shaft pin 17 (indicated by an arrow L ₁₈ in FIG. 5A), and the second link arm The distance between the position supported by the shaft pin 19 at 20 and the position supported by the link shaft 26 (indicated by the arrow L ₂₀ in FIG. 5A) is set to have the same length (L ₁₈ = L ₂₀ ) . Furthermore, the heights of the shaft pin 17 and the link shaft 26 relative to the base portion 12a of the fixed frame 12 (indicated by an arrow ΔL in FIG. 5A) are also set to be the same height.

Further, in the present embodiment, the first link arm 18 is provided with the hinge unit 30 (a first semi-automatic mechanism described in the claims). The hinge unit 30 is coaxially disposed on an axial pin 17 that supports the lower end of the first link arm 18. In the present embodiment, the configuration in which the hinge unit 30 is provided on the first link arm 18 (shaft pin 17) is illustrated, but the configuration in which the hinge unit 30 is provided on the second link arm 20 (link shaft 26) It is also possible.

The hinge unit 30 is configured such that a head cam, a slide cam, a hinge spring 33 and the like are provided in a hinge case (individual components do not appear in the figure). Convex and concave surfaces are formed on the contact surfaces of the head cam and the slide cam. In this hinge unit 30, no rotational torque is generated at a position where the convex portions of the convex surfaces of the cams abut (referred to as a reverse position), but when the convex portion deviates from the reverse position, a hinge spring The elastic force is configured to generate a rotational torque.

The movable plate 14 is rotationally moved by the rotation of the first link arm 18 and the second link arm 20. In the present embodiment, the position in the middle of the rotation is set to be the reverse position of each cam. Specifically, the position shown in FIG. 5C (the position where each arm 18, 19 is inclined 30 ° counterclockwise with respect to the vertical direction) is set to be the reverse position of the hinge unit 30.

Therefore, when the first and second link arms 18 and 20 are in the counterclockwise position with respect to the reverse position (the position shown in FIG. 5C), the hinge unit 30 causes the first and second link arms 18 to move. Is rotationally biased in the direction (return direction) indicated by arrow A2 in FIG. 5C. On the other hand, after the first and second link arms 18 and 20 rotate slightly by a distance from the reverse position to the arrow A1, the biasing force of the hinge unit 30 is reversed, and the first and second link arms 18 and 20, 20 is rotationally biased in the direction of arrow A1 (advancing direction). Thus, the hinge unit 30 configured as described above constitutes a so-called cam-type semi-automatic hinge.

Next, specific operations of the switching device 10 configured as described above and the electronic device 1 to which the switching device 10 is applied will be described. 4A to 4D, 5A to 5D, 6A to 6D, and 7A to 7D show the movement of the second housing 3 and the slide plate 16 from the closed state to the open state.

FIGS. 4A, 5A, 6A, and 7A (hereinafter, the descriptions of the respective drawings are abbreviated as FIG. 4A to FIG. 7A) show the switching device 10 and the electronic device 1 in the closed state. In the closed state, as shown in FIG. 7A, the second housing 3 of the electronic device 1 is in a state of being superimposed on the top of the first housing 2.

In the closed state, as shown in FIGS. 4A to 6A, the first and second link arms 18 and 20 of the opening / closing device 10 are counterclockwise in the figure centering on the shaft pin 17 and the link shaft 26 (see FIG. 5A). It is in the state of being rotated in the direction indicated by the arrow A2. At this time, the hinge unit 30 biases the first and second link arms 18 in the counterclockwise direction (A2 direction, return direction).

Furthermore, in the closed state, the slide plate 16 slides in the X2 direction with respect to the movable plate 14. Therefore, as shown in FIGS. 4A and 6A, the stopper groove 14e is in contact with the stopper 16e, and the roller 28 of the spring unit 23 is engaged with the cam groove 24b of the cam plate 24. Thus, the slide plate 16 does not rattle the moving plate 14 by the stopper groove 14e and the stopper 16e coming into contact and the roller 28 engaging with the cam groove 24b and pressing it in the Y1 direction. .

In order to move the slide plate 16 (the second housing 3) from the closed position to the open position, the slide plate 16 is first slid in the X1 direction with respect to the moving plate 14. Specifically, the operator moves and urges the slide plate 16 (second housing 3) in the arrow X1 direction. The slide groove 14f and the slide portion 16b which constitute the slide mechanism 22 are configured to be slidable.

Therefore, by moving and biasing the slide plate 16 (second housing 3), the roller 28 of the spring unit 23 separates from the cam groove 24b, and the slide plate 16 starts moving in the arrow X1 direction. When this movement biasing is performed, a force acts to rotate the moving plate 14 with respect to the fixed frame 12, but the rotational torque by the movement biasing force by the operator is greater than the rotational torque generated by the hinge unit 30. Too small.

As described above, when the slide plate 16 slides relative to the moving plate 14, the roller 28 of the spring unit 23 is in pressure contact with the cam surface 24c. Therefore, when the slide plate 16 slides, the slide plate 16 does not rattle with the moving plate 14.

As the slide plate 16 slides in the X1 direction, the roller 28 of the spring unit 23 eventually engages with the cam groove 24a. Further, the stopper groove 14d is engaged with the stopper 16d, and the further slide of the slide plate 16 is restricted. When the roller 28 engages with the cam groove 24a, the operator can feel this engagement as clicking. Therefore, the operator can know that the slide plate 16 has moved to the predetermined position in the X1 direction by the click feeling.

FIGS. 4B to 7B show a state where the slide plate 16 engages with the cam groove 24a and the stopper groove 14d and the stopper 16d as described above. Hereinafter, the positions shown in FIGS. 4B to 7B of the opening / closing device 10 and each component constituting the opening / closing device 10 will be referred to as a first intermediate position.

When the moving plate 14 (slide plate 16) is moved from the first intermediate position against the biasing force of the hinge unit 30 toward the open position, the second housing 3 is separated from the first housing 2 Move toward the open position as shown in FIG. 7C. Along with this, the first link arm 18 starts to rotate clockwise (direction A1) about the shaft pin 17 and at the same time, the second link arm 20 rotates clockwise (direction A1) about the link shaft 26. Start the rotation.

At this time, in the present embodiment, the fixed frames 12A and 12B are arranged separately in the Y1 and Y2 directions, and the first link arms 18A and 18B and the second link arms 20A and 10B are also separated in the Y1 and Y2 directions. It has a configuration in which However, the second link arm 20A and the second link arm 20B are connected by the link shaft 26. Thus, the rotation of the second link arm 20A and the rotation of the second link arm 20B are synchronized with each other, and the same rotation can be performed.

Further, as described above, the first and second link arms 18 and 20 have the same length (L ₁₈ = L ₂₀ ), and each link arm 18 and 20 has the fixed frame 12 and the movable plate 14. It is set as the structure arrange | positioned in parallel with (connection member 29). Therefore, when the first and second link arms 18 and 20 rotate, the movable plate 14 and the slide plate 16 move while maintaining the parallel state with respect to the fixed frame 12.

FIGS. 4C to 7C show a state in which the first link arm 18 is moved to the reverse position by the moving operation of the moving plate 14 toward the open position. Hereinafter, the positions shown in FIGS. 4C to 7C of the opening / closing device 10 and the respective constituent elements constituting the same are referred to as second intermediate positions.

As described above, at the reverse position, the apexes of the convex surfaces of the head cam and the slide cam of the hinge unit 30 are in contact with each other. In this reverse position, the rotational biasing force of the first link arm 18 by the hinge unit 30 is instantaneously lost. Then, by operating the movable plate 14 (second housing 3) to the open position further from this reverse position, the rotational torque generated by the hinge unit 30 is reversed, and the direction in which the movable plate 14 moves toward the open position The first link arm 18 is rotationally biased.

As a result, after the second intermediate position, the first link arm 18 is rotationally urged clockwise (A1 direction, opening direction) about the shaft pin 17. Therefore, after the movable plate 14 is slightly operated from the reverse position to the open position, the movable plate 14 (the slide plate 16 and the second housing 3) is automatically rotationally moved to the open position.

FIGS. 4D to 7D show the movable plate 14 (the slide plate 16 and the second housing 3) moved to the open position. When the movable plate 14 and the slide plate 16 move to the open position, the upper surface 2a of the first housing 2 and the upper surface 3a of the second housing 3 are flat (the upper surfaces 2a and 3a are in the same plane) It becomes. Therefore, in the open position, the first housing 2 and the second housing 3 do not overlap, and the entire upper surface 2 a of the first housing 2 and the upper surface 3 a of the second housing 3 are exposed. The space of each case 2, 3 can be used effectively.

The operations and operations for moving the slide plate 16 and the movable plate 14 (the second housing 3) from the open state shown in FIGS. 4D to 7D to the closed position shown in FIGS. Since the operation is the opposite of the operation, the description thereof is omitted.

As described above, in the opening / closing device 10 according to the present embodiment, when the moving plate 14 and the slide plate 16 move between the open position and the closed position, the moving plate 14 and the slide plate 16 are fixed to the fixed frame 12 (base portion 12a Move while maintaining the horizontal state. Therefore, compared with the structure which a movement plate and a slide plate are fluctuate | varied in directions other than horizontal with a movement, stability of opening-and-closing operation can be improved.

Further, by configuring the respective plates 14 and 16 to move while maintaining the horizontal state, the operation direction with respect to the respective plates 14 and 16 by the operator at the time of the opening / closing operation can be made only in the horizontal direction (X1 direction). it can. Therefore, the operativity of the switching device 10 at the time of opening and closing can be improved.

Further, as described above, in the present embodiment, the roller 28 of the spring unit 23 presses the cam plate 24 in the Y1 direction. Therefore, even if the slide plate 16 is slid relative to the movable plate 14, it is possible to prevent the slide plate 16 from rattling.

Furthermore, in the present embodiment, the slide plate 16 fixed to the second housing 3 is slid with respect to the moving plate 14 rotationally moved by the first and second link arms 18 and 20. For this reason, simplification of the structure in the connection position (position supported) of each link arm 18 and 20 can be achieved, and accordingly, the configuration of the opening / closing device 10 can be made compact.

Next, a modification of the above-described slide mechanism 22 will be described with reference to FIGS. 8 to 10.

When the slide mechanism 22 described above slides the slide plate 16 with respect to the moving plate 14, the operator manually performs all operations for moving the slide plate 16 between the closed position and the first intermediate position. It was.

On the other hand, the slide mechanisms 42, 52, 62 according to the first to third modifications shown in FIGS. 8 to 10 slide the slide plate 16 from the closed position or the first intermediate position to the predetermined reverse position. Is characterized in that a mechanism (a second semi-automatic mechanism described in the claims) is provided which biases the force in the return direction and biases the force in the forward direction when the reverse position is exceeded. In FIG. 8 to FIG. 10, the same reference numerals are assigned to configurations corresponding to the configurations shown in FIG. 1 to FIG. 7D, and the description thereof is omitted.

FIG. 8 shows a slide mechanism 42 according to a first modification. The slide mechanism 42 has a configuration similar to the slide mechanism 22 described above. However, while the cam surface 24c of the cam plate 24 in the slide mechanism 22 has a flat linear shape, the slide mechanism 42 according to the present modification example is between the cam groove 44a and the cam groove 44b of the cam plate 44. A chevron-shaped cam surface 44c which is convex in the direction of the arrow Y2 is provided.

In the present modification, the vertex position (the position indicated by the arrow P1 in the figure) of the cam surface 44c in a mountain shape is the reverse position. Now, assuming that the slide plate 16 is slid relative to the moving plate 14 in the X1 direction, when the roller 28 of the spring unit 23 is between the cam groove 44b and the reverse position P1, the biasing force of the spring unit 23 is As a result, the slide plate 16 is biased in the X2 direction (toward the closed position).

However, when the operator moves the slide plate 16 to a position beyond the reverse position P1, the roller 28 subsequently presses the curved cam surface 44c between the reverse position P1 and the cam groove 44a. Automatically slide in the X1 direction. Therefore, the operability at the time of sliding of the slide plate 16 can be enhanced by adopting the configuration of the present modification.

FIG. 9 shows a slide mechanism 52 which is a second modification. The slide mechanism 52 is characterized in that arched wire springs 53 are provided on both sides (sides in the Y1 and Y2 directions) of the slide plate 16 and rollers 54 are provided on the moving plate 14. It is a thing.

The pair of wire springs 53 is formed of a spring wire and is curved so as to be convex inward. The pair of wire springs 53 is fixed to the slide plate 16 by fixing the fixing pins 56 to the mounting holes 16g at both ends. Further, the roller 54 is rotatably fixed to a mounting hole 14 g formed in the moving plate 14. Furthermore, the roller 54 is configured to always engage the wire spring 53 from the inside when the slide plate 16 slides in the X1 and X2 directions with respect to the moving plate 14.

In this modification, the apex position (the position indicated by the arrow P2 in the figure) of the arched wire spring 53 is the reverse position. Assuming that the slide plate 16 is slid in the X1 direction with respect to the moving plate 14 as in the first modification, when the roller 54 is between the fixing pin 56 in the arrow X1 direction and the reverse position P2, The elastic force of the wire spring 53 biases the slide plate 16 in the X2 direction (toward the closed position).

However, when the operator moves the slide plate 16 to a position beyond the reverse position P2, the roller 54 contacts the wire spring 53 between the reverse position P2 and the fixing pin 56 on the arrow X2 direction side. 16 slides in the X1 direction by the elastic restoring force of the wire spring 53. Therefore, the operability at the time of sliding of the slide plate 16 can be enhanced even with the configuration of the present modification.

FIG. 10 shows a slide mechanism 62 which is a third modification. The slide mechanism 62 is characterized in that a spring unit 63 is disposed between the moving plate 14 and the slide plate 16. The spring unit 63 has a configuration in which fixing members 65 and 66 are disposed at both ends of the plurality of wire springs 64.

The wire spring 64 is bent in a substantially V-shape. One end of each wire spring 64 is formed on the fixing member 65 by welding or the like, and the other end is fixed to the fixing member 66 by welding or the like. The fixing member 65 is fixed to the fixing hole 14 h of the moving plate 14, and the fixing member 66 is fixed to the fixing hole 16 h of the slide plate 16.

In this modification, the position where the fixing member 65 and the fixing member 66 which are not associated with the slide of the slide plate 16 are aligned in the Y2 and Y2 directions is the reverse position. Assuming that the slide plate 16 is slid in the X1 direction with respect to the moving plate 14 as in the above respective modifications, the slide plate 16 is moved in the X2 direction by the elastic force of the spring unit 63 until the slide plate 16 reaches the reverse position. It is biased towards (to the closed position).

However, when the operator moves the slide plate 16 to a position beyond the reverse position, the elastic force by the spring unit 63 is reversed thereafter, and the slide plate 16 slides in the X1 direction. Therefore, the operability at the time of sliding of the slide plate 16 can be enhanced even with the configuration of the present modification.

In the second and third modifications, since the spring unit 23 is not provided, a force for biasing the slide plate 16 in the Y1 direction by the spring unit 23 does not act. For this reason, the slide plate 16 may be rattled with respect to the moving plate 14. However, in the second and third modified examples, the resin slide guide 55 is disposed in the slide groove 14f to prevent the generation of rattling between the slide groove 14f and the slide portion 16b.

Although the preferred embodiments of the present invention have been described above in detail, the present invention is not limited to the specific embodiments described above, and various modifications may be made within the scope of the present invention as set forth in the appended claims. It is possible to change or change it.

This international application claims priority based on Japanese Patent Application No. 2010-167444 filed on July 26, 2010, and the entire contents of Japanese Patent Application No. 2010-167444 are incorporated herein by reference. I will use it.

Claims (4)

A fixed frame having a bearing portion and fixed to the first housing;
A movable plate rotatably movable relative to the fixed frame;
A slide plate which is slidable relative to the moving plate and fixed to the second housing;
An arm having one end pivotally supported by the bearing and the other end pivotally supported by the moving plate, and having a plurality of arms of the same length disposed between the bearing and the moving plate;
And a slide mechanism for sliding the slide plate relative to the moving plate,
The slide plate slides relative to the movable plate by the slide mechanism, and the movable plate rotates relative to the fixed frame as the arm rotates, whereby the second housing and the first housing An opening and closing device characterized in that the second housing moves from an overlapping closed position to an open position where the second housing is flat with the first housing. The switchgear according to claim 1, wherein the plurality of arms are arranged in parallel to each other between the bearing portion and the moving plate. Force is applied in the return direction to at least one of the arms until the arm is rotated from the closed position or the open position to a predetermined reverse position, and is biased in the forward direction when the reverse position is exceeded The switchgear according to claim 1, further comprising a first semi-automatic mechanism. The slide mechanism is a second semi-automatic mechanism that applies a force in a return direction until the slide plate is slid from the slide start position to a predetermined reverse position, and biases a force in the forward direction when the reverse position is exceeded. The switchgear according to claim 1, comprising:

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